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Theory of Machine

Theory of Machine
Relationship between the number of links (L) and number of pairs (P) is

P = 2L + 4
P = 2L - 4
P = 2L + 2
P = 2L - 2

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Theory of Machine
The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is

6 Hz
6π Hz
3 Hz
3π Hz

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Theory of Machine
For fluctuating loads, well suited bearing is

Needle roller bearing
Roller bearing
Ball bearing
Thrust bearing

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Theory of Machine
When the particles of a body moves perpendicular to its axis, then the body is said to have

Transverse vibration
None of these
Longitudinal vibration
Torsional vibration

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Theory of Machine
Which of the below are inversions of slider crank mechanism? 1. Oscillating cylinder engine mechanism 2. Toggle mechanism 3. Radial cylinder engine mechanism 4. Quick return mechanism

1, 2 and 4
2, 3 and 4
1, 2 and 3
1, 3 and 4

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Theory of Machine
Which of the following is an inversion of Single slider crank chain?

Rotary engine
Oldham’s coupling
Elliptical trammel
Beam engine

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